Be more explicit to ensure correct pyinstaller version is used

publish.sh

@@ -68,10 +68,9 @@ type="$(find_type $build_type)"
 version="$(find_version $build_type)"
 arch="$(find_arch)"
 
-source .venv/bin/activate
-pip3 install pyinstaller
+.venv/bin/pip3 install pyinstaller
 rm -rf dist/
-pyinstaller -y precise.stream.spec
+.venv/bin/pyinstaller -y precise.stream.spec
 
 out_file=dist/precise-stream.tar.gz
 cd dist

setup.sh

@@ -27,7 +27,7 @@ pip=.venv/bin/pip
 
 if [ ! -f "$pip" ]; then
     python3 -m venv .venv/ --without-pip
-    curl https://bootstrap.pypa.io/get-pip.py | .venv/bin/python
+    curl https://bootstrap.pypa.io/get-pip.py | $python
 fi
 
 arch="$(python3 -c 'import platform; print(platform.machine())')"